A shear pathway to the core

Michael J. Walter ()
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Michael J. Walter: Institute for Study of the Earth's Interior, Okayama University

Nature, 2000, vol. 403, issue 6772, 839-840

Abstract: Experimental studies call into question one line of evidence supporting a popular model for how the Earth's core formed. This model has it that the core was created by the gravitational segregation of iron-rich liquid metal from a molten mantle (a magma ocean). But the new work shows that the metal could have passed to the core through channels in a solid mantle being deformed by shear forces.

Date: 2000
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DOI: 10.1038/35002698

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